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Chapter 4 - Cubes and Cube Roots - R S Aggarwal Solutions for class 8

Cube of a number: for a given number x, we define cube of x = x×x×x and is denoted byx3.

Perfect cube: A natural number is said to be a perfect cube if it is the cube of some natural number.

Note: A given number is a perfect cube if it can be expressed as the product of triplets of equal factors.

Cube of a rational number:


Properties of cubes of numbers

(a) The cube of every even number is even.

(b) The cube of every odd number is odd.

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